By Mark Savage
Entertainment reporter, BBC News, Latitude Festival
Yorke will be back with Radiohead at Reading and Leeds festival
Radiohead frontman Thom Yorke has played a rare acoustic set to kick off the last day of the Latitude Festival in Suffolk.
Crowds began to gather at the main stage with their breakfast rolls during the singer's soundcheck at 10am BST.
By the time Yorke got on stage at noon, the audience equalled that of Saturday night's headliner, Grace Jones.
Seated behind a grand piano, the 41-year-old opened with the title track from his 2006 album The Eraser.
But the shaggy-haired star defied expectations by playing Radiohead material, too.
Set highlights included Weird Fishes, a track from the band's 2007 album In Rainbows, and elegiac version of Everything In Its Right Place, from Kid A.
A stripped-back version of Harrowdown Hill, in which the musician looped a bass line and layered keyboard and guitar over the top, also proved popular with the crowd.
In good spirits throughout the early morning set, Yorke's first words to the crowd were: "Shhh... There's people sleeping".
Later, in response to a cry of "I love you Thom", he replied drily; "Yes dear, I'll be home later."
Switching between piano, keyboard and guitars, he played several rare and new songs, including Follow Me Around, a track which had been "sitting on the shelf and never really come off the shelf".
"Anyway, you can get it on Youtube now," the star joked.
Radiohead's long-time producer Nigel Godrich was seen singing along at the side of the stage.
Called back on to the stage for an encore, he rounded off the hour-long set with Radiohead tracks There, There and True Love Waits - from the band's live EP I Might Be Wrong.
Fan Ian Hannent from London was bowled over by the show.
"It's a great opportunity to see somebody that good, so close up," he told the BBC News website.
"Radiohead are an amazing band, but to see him on his own, approaching the songs in a different way, was really exciting."
Elliot Hulland-Camp from Canterbury agreed the set had been "astonishing".
"I wasn't sure the time of day would suit this type of gig but it was the right mix of Radiohead songs and solo stuff.
"Because he's the only act on at the moment, as well, everyone came for this one event. It was pretty special."
Yorke himself said he had had a "lovely time:
The star will be back at his day job when Radiohead headline the Reading and Leeds festival on August Bank Holiday weekend.
Thom Yorke's full set can be heard on Tom Robinson's 6Music show from 2000 BST on Sunday.